jQuery.fn.menu = function (){
	return this.each(function(){
		/*-- Hack for IE 7 --*/
		if ($.browser.msie && $.browser.version =='7.0'){
			$(this).css('height','1%');
		}
		/*--*/
		var $mainmenu=$(this).find("ul");
		var $headers=$mainmenu.find("ul").parent();
		$headers.each(function(i){
			var $curobj=$(this);
			var $subul=$(this).find('ul:eq(0)');
			this._dimensions={w:this.offsetWidth, h:this.offsetHeight, subulw:$subul.outerWidth(), subulh:$subul.outerHeight()};
			this.istopheader=$curobj.parents("ul").length==1? true : false;
			$subul.css({top:this.istopheader? this._dimensions.h+"px" : 0});
			
			$curobj.hover(
				function(e){
					var $targetul=$(this).children("ul:eq(0)");
					if ($targetul.html()!=null&&jQuery.trim($targetul.html()).length>0){
						this._offsets={left:$(this).offset().left, top:$(this).offset().top};
						var menuleft=this.istopheader? 0 : this._dimensions.w;
						menuleft=(this._offsets.left+menuleft+this._dimensions.subulw>$(window).width())? (this.istopheader? -this._dimensions.subulw+this._dimensions.w : -this._dimensions.w) : menuleft;
						$targetul.css({left:menuleft+"px"}).fadeIn(300);
					}
				},
				function(e){
					$(this).children("ul:eq(0)").fadeOut(100);
				}
			);
		});
		$mainmenu.find("ul").css({display:'none', visibility:'visible'});
		}
	)
}